LD50 LC50 Mixture:NONE SPECIFIED BY MANUFACTURER.
Routes of Entry: Inhalation:YES Skin:YES Ingestion:YES
Reports of Carcinogenicity:NTP:YES IARC:YES OSHA:NO
Health Hazards Acute and Chronic:ACUTE: CAN DRY SKIN & CAUSE ALKALI
BURNS. DUST CAN IRRIT EYES & UPPER RESP SYS. TOX EFTS NOTED IN
ANIMALS INCLUDE, FOR ACUTE EXPOS, ALVEOLAR DMG W/PULM EDEMA.
CHRONIC: DUST CAN CAUSE INFLAMM OF LINING TISS OF INTERIOR OF NOSE
& INFLAMM OF CORNEA. HYPERSENSITIVE INDIVIDUALS MAY DEVELOP
ALLERGIC DERM. (EFTS OF OVEREXP)
Explanation of Carcinogenicity:SILICA CRYSTALLINE-QUARTZ: IARC
MONOGRAPHS, SUPPLEMENT. VOL 7, PG 341, 1987: GROUP 2A. NTP 7TH
ANNUAL REPORT (SUP DAT)
Effects of Overexposure:HLTH HAZ: EXCESS INHAL OF SILICA DUST MAY RSLT
IN RESP DISEASE, INCL SILICOSIS, PNEUMOCONIOSIS, PULM FIBROSIS &
POSS CANCER. SIGNS & SYMP OF OVEREXP: SHORTNESS OF BREATH & REDUCED
PULM FUNCTION. THIS INERT MATL GIVES NO POTENTIAL ACUTE TOXHAZ.
Medical Cond Aggravated by Exposure:INDIVIDUALS WITH SENSITIVE SKIN AND
WITH PULMONARY AND/OR RESPIRATORY DISEASE, INCLUDING, BUT NOT
LIMITED TO, ASTHMA AND BRONCHITIS, OR SUBJECT TO EYE IRRITATION,
SHOULD BE PRECLUDED FROM EXPOSURE.
======================= First Aid Measures =======================
Eyes: IRRIGATE (FLOOD) IMMEDIATELY AND REPEATEDLY WITH CLEAN
WATER FOR AT LEAST 15 MINUTES. SKIN: WASH EXPOSED AREAS WITH SOAP
AND WATER. APPLY STERILE DRESSINGS. INHALATION: FOR GROSS
INHALATION, REM OVE PERSON IMMEDIATELY TO FRESH AIR, GIVE
ARTIFICIAL RESPIRATION AS NEEDED. GET PROMPT MEDICAL ATTENTION.
INGESTION: CALL MD IMMEDIATELY .
===================== Fire Fighting Measures =====================
Flash Point:NON-COMBUSTIBLE.
Extinguishing Media:USE MEDIA SUITABLE FOR SURROUNDING FIRE .
Fire Fighting Procedures:WEAR NIOSH/MSHA APPROVED SCBA & FULL
PROTECTIVE EQUIPMENT .
Unusual Fire/Explosion Hazard:NONE SPECIFIED BY MANUFACTURER.
Spill Release Procedures:USE DUSTLESS METHODS (VACUUM) AND PLACE INTO
CLOSABLE CONTAINER FOR DISPOSAL OR USE IF NOT CONTAMINATED OR WET.
USE ADEQUATE VENTILATION.
Neutralizing Agent:NONE SPECIFIED BY MANUFACTURER.
====================== Handling and Storage ======================
Handling and Storage Precautions:NONE SPECIFIED BY MANUFACTURER.
Other Precautions:PRECAUTIONS MUST BE OBSERVED BECAUSE BURNS OCCUR WITH
LITTLE WARNING. LITTLE HEAT IS SENSED.
Respiratory Protection:IN DUSTY ENVIRONMENTS, THE USE OF AN OSHA,
NIOSH/MSHA APPROVED RESPIRATOR IS RECOMMENDED.
Ventilation:LOCAL EXHAUST CAN BE USED, IF NECESSARY, TO CONTROL
AIRBORNE DUST LEVELS.
Protective Gloves:IMPERVIOUS GLOVES.
Eye Protection:ANSI APPRVD CHEM WORKERS GOGGS .
Other Protective Equipment:WEAR IMPERVIOUS BOOTS & CLOTHING. USE
BARRIER CREAMS. EMER EYEWASH & DELUGE SHOWER MEETING ANSI DESIGN
CRITERIA .
Work Hygienic Practices:FOLLOWING WORK, WORKERS SHOULD SHOWER WITH SOAP
AND WATER.
Supplemental Safety and Health
CARCIN EXPLAN: ON CARCINOGENS, 1994: ANTICIPATED TO BE CARCINOGEN.
Solubility in Water:SLIGHT
Appearance and Odor:GRAY COLORED WITH NO ODOR
================= Stability and Reactivity Data =================
Stability Indicator/Materials to Avoid:YES
POWERFUL OXIDIZING AGENTS SUCH AS FLUORINE, CHLORINE TRIFLUORIDE,
MANGANESE TRIOXIDE & OXYGEN DIFLUORIDE.
Stability Condition to Avoid:KEEP DRY UNTIL USED TO PRESERVE PRODUCT
UTILITY.
Hazardous Decomposition Products:SILICA WILL DISSOLVE IN HYDROFLUORIC
ACID & PRODUCE A CORROSIVE-GAS (SILICON TETRAFLUORIDE).
Waste Disposal Methods:CAN BE TREATED AS A COMMON WASTE FOR DISPOSAL IN
ACCORDANCE WITH FEDERAL, STATE, AND LOCAL REGULATIONS.
Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.